itsmattkc
6f0d72c05d
While planar audio cannot be used for playback, it's much easier for processing. This should lead to cleaner and easier to write code in the future.
100 lines
2.1 KiB
C++
100 lines
2.1 KiB
C++
#include "ffmpegframecache.h"
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#include <QDateTime>
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#include <QDebug>
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QMutex FFmpegFrameCache::pool_lock_;
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QList<Frame*> FFmpegFrameCache::frame_pool_;
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Frame *FFmpegFrameCache::Client::append(const VideoRenderingParams& params)
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{
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Frame* f = FFmpegFrameCache::Get(params);
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frames_.append({f, QDateTime::currentMSecsSinceEpoch()});
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return f;
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}
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void FFmpegFrameCache::Client::clear()
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{
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foreach (const CachedFrame& cf, frames_) {
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FFmpegFrameCache::Release(cf.frame);
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}
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frames_.clear();
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}
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bool FFmpegFrameCache::Client::isEmpty() const
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{
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return frames_.isEmpty();
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}
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Frame *FFmpegFrameCache::Client::first() const
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{
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return frames_.first().frame;
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}
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Frame *FFmpegFrameCache::Client::at(int i) const
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{
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return frames_.at(i).frame;
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}
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Frame *FFmpegFrameCache::Client::last() const
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{
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return frames_.last().frame;
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}
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int FFmpegFrameCache::Client::size() const
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{
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return frames_.size();
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}
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void FFmpegFrameCache::Client::accessedFirst()
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{
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frames_.first().accessed = QDateTime::currentMSecsSinceEpoch();
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}
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void FFmpegFrameCache::Client::accessedLast()
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{
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frames_.last().accessed = QDateTime::currentMSecsSinceEpoch();
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}
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void FFmpegFrameCache::Client::accessed(int i)
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{
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frames_[i].accessed = QDateTime::currentMSecsSinceEpoch();
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}
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void FFmpegFrameCache::Client::remove_old_frames(qint64 older_than)
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{
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while (!frames_.isEmpty() && frames_.first().accessed < older_than) {
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FFmpegFrameCache::Release(frames_.takeFirst().frame);
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}
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}
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Frame* FFmpegFrameCache::Get(const VideoRenderingParams ¶ms)
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{
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QMutexLocker locker(&pool_lock_);
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// See if we have a frame matching this description in the pool
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for (int i=0;i<frame_pool_.size();i++) {
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if (frame_pool_.at(i)->width() == params.width()
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&& frame_pool_.at(i)->height() == params.height()
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&& frame_pool_.at(i)->format() == params.format()) {
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return frame_pool_.takeAt(i);
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}
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}
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// Otherwise we'll need to create one
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Frame* f = new Frame();
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f->set_video_params(params);
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f->allocate();
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return f;
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}
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void FFmpegFrameCache::Release(Frame *f)
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{
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QMutexLocker locker(&pool_lock_);
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frame_pool_.append(f);
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}
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